At the time the trainee would have to arrive for the lessons I don't think that might apply.
Rogerg
The last time I looked there were no FTO's offering 'lessons' at either LHR or LGW, I might be wrong but I think the operating environment might not be conducive to training.
More than welcome to try it but the wake turbulence separation behind heavy and 'super' departures and arrivals might make circuits interesting!
Maybe, just maybe, if successful and based at LHR/LGW then the 2 hours rule 'might' apply at the time the 'employee' would have to arrive for the SH 'job'. Please refer to the above post.
Cheers.